Description
By using a tunable semiconductor laser, the LGT series laser gas analyzer scans the specific absorption lines of the measured gas(no background gas) to get the second harmonic of the gas. Through processing and analyzing the second harmonic and the broadening information of the gas, the concentration of the gas is obtained.
Feature
• Non-contact optical measurement, low drift, and long service life.
• One-side installation, no complex adjustment of the optical path required.
• Reference gas cell adopted; online calibration; no disassemble needed
• "SIngle line spectrum" technology, free from the interference of background gas
• In-situ measurement, no sample conditioning required and avoiding the problems that sample is absorbed during the conditioning process, blocking, unit damage and etc.
• Low maintenance cost
Spesification
|
Principle |
TDLAS |
|
Linear Error |
≤±1%F.S. |
|
Response Time |
≤1s(T90) |
|
Span Drift |
≤±1% F.S./half year |
|
Zero Drift |
≤±1% F.S./half year |
|
Calibration Cycle |
≤2 times/ year |
|
Analog Output |
3× 4-20mA output |
|
Analog Input |
4× 4-20mAinput |
|
Digital Communications |
RS485/RS232/GPRS |
|
Working Temp |
-20oC~+60oC |
|
Purge Gas |
0.3MPa ~ 0.8MPa N2, clean air |
|
Power supply |
24VDC or 220VAC |
